LaGuardia in September 2024

88.8%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In September 2024, reporting carriers scheduled 13,549 domestic departures from LaGuardia (LGA). 88.8% left less than 15 minutes late and 88.5% reached their destination on time; 0.4% were cancelled.

Nationally that month, 84.4% of flights departed on time and 83.9% arrived on time, so LGA departures were 4.4 points above the national departure figure.

A year earlier, in September 2023, the airport had 13,372 departures with 73.8% leaving on time: a change of +15.0 points, with flights up 1%.

Flights arriving at LGA that month were on time 88.5% of the time (13,552 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 43%, late-arriving aircraft 34% and national aviation system 19%.

On time 88.5%
Arrived 15+ minutes late 10.9%
Cancelled 0.4%
Diverted 0.2%

Every scheduled departure from LGA in September 2024, judged by arrival at the destination.

September 2024 against a year earlier, the airport's year and the nation

Measure	Sep 2024	Sep 2023	LGA, 12 months to Jul 2026	All reported flights, Sep 2024
Departed on time	88.8%	73.8%	72.6%	84.4%
Arrived on time	88.5%	72.7%	69.9%	83.9%
Cancelled	0.4%	6.0%	4.6%	0.6%
Average departure delay (late minutes only)	7.5 min	19.7 min	19.3 min	10.6 min
Scheduled departures a day	452	446	372	19,421
Scheduled departures	13,549	13,372	135,840	582,622

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
YX Republic Airline	3,716	27%	90.5%	-9.0 min	0.3%
9E Endeavor Air	2,557	19%	92.6%	-12.5 min	0.4%
DL Delta Air Lines	2,356	17%	86.7%	-4.0 min	0.4%
AA American Airlines	1,253	9%	84.4%	1.5 min	0.7%
WN Southwest Airlines	961	7%	89.8%	-4.4 min	0.1%
B6 JetBlue Airways	750	6%	79.1%	4.2 min	0.4%
UA United Airlines	743	5%	89.1%	-5.0 min	0.4%
NK Spirit Airlines	666	5%	91.4%	-11.4 min	0.5%
OO SkyWest Airlines	307	2%	86.0%	2.1 min	0.0%
F9 Frontier Airlines	240	2%	70.0%	8.6 min	2.5%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
LGA–ORD	New York to Chicago	931	88.8%	-4.4 min	0.1%
LGA–ATL	New York to Atlanta	695	84.6%	2.0 min	0.6%
LGA–BOS	New York to Boston	655	83.4%	-2.9 min	0.2%
LGA–DFW	New York to Dallas/Fort Worth	556	85.3%	-3.7 min	0.0%
LGA–CLT	New York to Charlotte	510	81.6%	4.3 min	2.5%
LGA–MIA	New York to Miami	432	85.2%	-3.0 min	0.7%
LGA–DEN	New York to Denver	398	88.4%	-4.6 min	0.3%
LGA–DTW	New York to Detroit	368	92.1%	-11.5 min	0.3%
LGA–BNA	New York to Nashville	366	89.9%	-7.3 min	0.0%
LGA–DCA	New York to Washington	356	90.4%	-9.5 min	0.0%
LGA–RDU	New York to Raleigh/Durham	352	88.6%	-7.7 min	0.3%
LGA–FLL	New York to Fort Lauderdale	339	81.1%	1.2 min	0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), September 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2024	Minutes
Air carrier	42.9%	38.6%	38,377
Late-arriving aircraft	33.6%	38.4%	30,026
National Aviation System	19.1%	18.2%	17,052
Extreme weather	4.4%	4.8%	3,905
Security	0.1%	0.1%	98

89,458 delay minutes on 1,473 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left LGA on time in September 2024?

88.8% of 13,549 scheduled domestic departures left less than 15 minutes late, and 88.5% reached their destination on time. The national figures that month were 84.4% and 83.9%.

How does that compare with a year earlier?

In September 2023, 73.8% of 13,372 departures left on time and 6.0% were cancelled, against 88.8% and 0.4% in September 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for LGA · methodology · corrections.